In a message dated 7/11/2007 4:18:48 PM Eastern Daylight Time, [log in to unmask] writes: I'm looking for comments from those who have any experience in attempting to apply conformal coatings to a hot assembly. By hot I would say equal to or less than the recommended cure temperature for the particular coating. I'd be interested in any positives or negatives to having a hot assembly while applying the coating. Thanks. ========= It depends on the type of coating and the type of coating process. A solvent based coating will tend to flash off faster and "freeze" in place in a spray or selective type application. This can be good for very tight keep-out clearances and can be bad if you expect coating to flow under devices, etc. Most silicone coatings will have the opposite reaction. The heat will reduce the viscosity and the coating will flow further and wet better. Jon Moore ************************************** Get a sneak peak of the all-new AOL at http://discover.aol.com/memed/aolcom30tour --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------